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Table 3 Cox regression analysis for time to In field/Overlap/Marginal failure (Local control)

From: A retrospective, deformable registration analysis of the impact of PET-CT planning on patterns of failure in stereotactic body radiation therapy for recurrent head and neck cancer

  Overall Cohort (n = 96) Definitive SBRT Subgroup (n = 89)
  Univariate Multivariate Univariate Multivariate
  p HR (95% CI) p HR (95% CI) p HR (95% CI) p HR (95% CI)
PET-CT Planning 0.165 0.64 (0.34, 1.20) 0.161 Not entered 0.051 0.53 (0.28, 1.003) 0.051 0.53 (0.28, 1.003)
Tumor volume (5 cc increase) 0.609 1.01 (0.97, 1.05) 0.609 Not entered 0.495 1.003 (0.98, 1.06) 0.568 Not entered
Cetuximab with SBRT 0.861 0.95 (0.51, 1.76) 0.861 Not entered 0.354 0.74 (0.40, 1.39) 0.294 Not entered
Interval from previous radiation to recurrence (3 months increase)
  0.300 0.99 (0.96, 1.01) 0.297 Not entered 0.361 0.99 (0.96, 1.01) 0.440 Not entered